3) A cheetah is hunting. Its prey run for 2.5 s at a constant velocity of +6.9 m/s. Starting from rest, what constant acceleration must the + cheetah maintain in order to run the same distance as its prey runs in the same time?

4) An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of +12.1 m/s and measures a time of 18.5 s before the rock returns to his hand. What is the acceleration (magnitude and direction) due to gravity on this planet?
(positive = up, negative = down)

3) A cheetah is hunting. Its prey run for 2.5 s at a constant velocity of +6.9 m/s. Starting from rest, what constant acceleration must the + cheetah maintain in order to run the same distance as its prey runs in the same time?

(^ stands for exponent)

Distance traveled by the prey = s = v t = 6.9 m/s. x 2.5 s = 17.25 m
(prey ...

An elevator at a construction site moves upward with a velocity of v = 6 ft/s. At the instant shown, the floor of the elevator is at a height of y = 120 ft above the ground when a pebble is dislodged from the floor. Find the position of the floor of the elevator when the pebble strikes the ground.
Diagram and question

A plane initially flying at 120 m/s [E] accelerates at 5.6 m/s^2[W] for 20.0 s.
a)What is plane's final velocity?
b) What is plane's displacement in this time?
A bullet leaves the muzzle of a gun with a velocity of 410m/s. The length of the gun barrel is 0.50m.
a) What is average velocity of the bullet inside the barrel of

See attached graph.
For a particle, this graph shows its displacement vs time.
Discuss about the velocity and acceleration of the particle. What kind (positive, negative, constant, zero) can they be?

One end of a spring with spring constant k is attached to the wall. The other end is attached to a block of mass m. The block rests on a frictionless horizontal surface. The equilibrium position of the left side of the block is defined to be x=0. The length of the relaxed spring is L... (see attached)
Please do not place your

A basketball player is balancing a spinning basketball on the tip of his finger. The angular velocity of the ball slows down from 18.5 to 14.1 rad/s. During the slow-down, the angular displacement is 85.1 rad. What is the time it takes for the ball to slow down?

A car is initially 3.0 km south of a gas station and is moving with a constant speed of 50 km/h due north. A truck is initially 5.0 km north of the gas station and is moving with a constant speed of 40 km/h due south. How far are the vehicles from the gas station when they pass each other?

Two soccer players start from rest, 49.0 m apart. They run directly toward each other, both players accelerating. The first player has an acceleration whose magnitude is 0.574 m/s2. The second player's acceleration has a magnitude of 0.226 m/s2. (a) How much time passes before they collide? (b) At the instant they collide, how f

The position of the L- shaped rod shown is controlled by a cable attached at B. Knowing that the rod supports a load of magnitude P = 50 lb, write a computer program that can be used to calculate the tension T in the cable for values of O from 0 to 120° using 10° increments. Using appropriate smaller increments, calculate the

A gymnast is performing a floor routine. In a tumbling run she spins through the air, increasing her angular velocity from 3.00 to 5.00 rev/s while rotating through one-half of a revolution. How much time does this maneuver take?